Parkinson's and Ballet

James meets Ian who has Parkinson's disease and hears how ballet has helped with his symptoms, as a major new review of the evidence shows exercise really does make a difference. And microplastics which can be found in drinking water and food stuffs have now been identified in human vein tissue. James unpicks what this means for our health.
Presenter: James Gallagher
Producer: Erika Wright and Harry Lewis